Money deposited in a health savings account is tax-deductible, grows tax-free and can be used to pay for medical expenses. The annual maximum allowable contribution to an HSA is slightly lower for some people this year. Fanatic Studio/Collection Mix: Subjects RF/Getty Images hide caption
Houston Astros starting pitcher Justin Verlander was traded from the Detroit Tigers in a move that that experts estimate netted the Astros about $10 million, though no money changed hands between the two teams. Jeff Roberson/AP hide caption
The new tax law will have the biggest impact on the market for luxury homes such as this one in the Pacific Heights neighborhood of San Francisco. Justin Sullivan/Getty Images hide caption
The NPR Top Political Story of the Year Bracket after Round 2 voting. Domenico Montanaro/NPR hide caption
Some Republicans see HSAs as a great way of helping consumers deal with mounting medical costs. It's still possible a change to the rules governing who can have an HSA and what they are allowed to cover could be added to another bill, some analysts say. Gary Waters/Ikon Images/Getty Images hide caption
Donald Trump signs a dollar bill for a supporter during a campaign rally in Richmond, Va., during the presidential campaign. Chip Somodevilla/Getty Images hide caption
Proposed changes to the tax law could eliminate the deduction for medical expenses. Those who use it generally have very high medical expenses, often for a disabled child, a serious chronic illness or expensive long-term care not covered by health insurance. PeopleImages/Getty Images hide caption
Peter Saltonstall, president of the National Organization of Rare Disorders, speaks at a rally Tuesday in support of tax credits for companies that develop drugs for rare diseases. Sarah Jane Tribble/KHN hide caption
Jared Haley, general manager of the C-Axis plant in Caguas, Puerto Rico, says computer-operated milling machines like this one can cost more than a half-million dollars. Heat and humidity in the plant after Hurricane Maria left many of the machines inoperable, Haley says. Greg Allen/NPR hide caption
Senate Majority Leader Mitch McConnell, R-Ky., Senate Finance Committee Chairman Orrin Hatch, R-Utah, and Treasury Secretary Steven Mnuchin speak to reporters about the Senate's version of the GOP tax reform bill. J. Scott Applewhite/AP hide caption
White House counselor Kellyanne Conway speaks at a press conference with (from left) Republican Sens. Thom Tillis and David Perdue, and Treasury Secretary Steve Mnuchin on Nov. 7. Only 2 percent of economists polled thought the GOP tax plan would lead to higher growth. Alex Wong/Getty Images hide caption
House Ways and Means Committee Chairman Kevin Brady, R-Texas, and Rep. Richard Neal, D-Mass., listen to debate on tax reform on Wednesday. J. Scott Applewhite/AP hide caption
House Speaker Paul Ryan answers reporters' questions moments after the House narrowly passed a budget, 216 to 212, beginning a process for the Senate to move forward on an overhaul of the tax code. Chip Somodevilla/Getty Images hide caption
Kansas Gov. Sam Brownback talks to the media during a news conference in July. Charlie Riedel/AP hide caption
Treasury Secretary Steve Mnuchin (center) arrives Tuesday at a meeting with congressional leaders to discuss a tax overhaul. Eric Thayer/Getty Images hide caption
President Trump built up his ability to "Making America Great Again." But these first 100 days of his presidency haven't exactly made clear how he intends to do that. Chelsea Beck/NPR hide caption